If you find yourself wondering when you might get a decent night's sleep, enjoy a quiet afternoon, or be able to smile at your neighbor again, it's probably time to think about a bark control collar or device. The fact is, dogs bark. They do it when they're excited or when they sense danger. Some do it when they're bored or worse, for no reason at all. You want to teach your dog that barking is only permitted under certain circumstances. The PetSafe Vibration Bark Control Collar uses both vibration and sound sensors to ensure your dog's bark is the only sound that will cause a correction. This bark control offers 10 combinations of vibration correction to promote good behavior and decrease nuisance barking. The Vibration Bark Control Collar is durable and waterproof and very easy to use. It has an on/off position for longer battery life and a three color LED for good/low battery and test indicators. The system includes the collar, operating guide, and a PetSafe RFA-188 battery. Adjustable collar for neck sizes up to 28"